The true identity of Zen master Wu Chao?

The identity of Zen master Wu Chao is still unclear.

From appearance to exit, the length of Wu Chao, the Zen master, is less than one-fifth of a return visit in The Journey to the West. Moreover, this person has unknown origin, whereabouts, mysterious intentions and boundless magic. He is the most mysterious peerless master in Journey to the West. Wu Chao, the Zen master, knows Tang Priest, but he doesn't know the Monkey King. He seems to be waiting for the arrival of Tang Priest, telling him that the future is difficult and Lingshan is far away. If he wants to go to Leidayin Temple, he must first get rid of the devil and teach him the Heart Sutra.

Extended data:

The Tang Priest sat on a horse and told his two disciples to watch the road carefully. Pig knows this area very well. "Nothing," he said to Tang Priest. This mountain is called Fotu Mountain. Wu Chao has a Zen master practicing here, and the old pig has met him. "

In the story of Journey to the West, this Wu Chao Zen master is as mysterious as Bodhi, Wukong's original master, except that Lulu first met the Tang Priest and others, and then disappeared completely until Wukong and Tang Priest got together and never appeared again.

Baidu Encyclopedia-Wu Chao Zen Master